Apparatus for making deads



June 26, 1928. 1,674,722

D. E. HENNESSY APPARATUS FOR MAKING BEADS Filed Oct. 27, 1924 s Shets-Sheet 1 Daniel E. Hnn essy In venfvr June 26, 1928.

D. E. HENNESSY APPKRATUS FOR MAKING BEADS 5 Sheets-Sheet 2 Filed Oct. 27 1924 Dah/e/ E. Hennessy lnvenfa r Afforney Jun 26. 1928.

Dan E Hennes Patented June 26, 1928.

arren stares PA TENT OFFECE.

DANIEL HENNESSY, or MILWAUKEE, WISCONSIN, Assxeivon we ran rIsK RUBBER COMPANY, OF CEICOPEE FALLS, MASSACHUSET'LS, A CORPORATION 01 MASSACHU- APPARATUS FOR MAKING BEADS.

Application filed October 27, 1924. Serial No. 746,255.

My invention relates to a device for forming bead cores and more particularly for forming that type of core which contains a plurality of metal cables or grommets.

' Among the objects of my invention is to provide a device by means of'which the cafication and which discloses one embodiment of my invention,

Figure 1 is a front elevation of the device,

Figure 2 is a plan view 'of the-structure shown in Figure l, i

Figm-es 3 and 4 are diagrammatic views showing the manner of operation,

Figure 5 is a section substantially on line of Figure 4 p Figure 6 is a section subs-sta'ntially on line 66 of Figure 4,

Figure 7 is a section substantially on line (-7 of Figure4,

Figure 8 shows a molded bead in sections, and

Figures 9, 10, and 11 are figures corre sponding to Figures 5,6, and? but showing a modified form of bead core. p I

Referring to the drawings lindicates a standard provided at the top with a table 2. A main drive shaft 4 is rotatably. mounted in bearings 6 and 7, supported respectively by brackets 8 and 9 secured to table 2. Power is transmitted to the shaft 4 through a loose'pulley 10 adapted to be operatively connected to the shaft 4 by clutch 12 operported in bearings 23 and 24 formed in brackets 25 and 26 secured to bracket 9.

Supported on the forward end of shaft. 22 is a drum 28 provided withspaced grooves 29. Drum 28 is mounted slightly eccentrically' on shaft 22 for reasons later explained. Positioned in alignment. with drum 28 1s a second drum 30 provided with grooves 31 .than those of drum 28.

similar to grooves 29, the outer flanges of drum 30, however, being substantially deeper mounted on'a shaft 27 secured to a carriage 32 provided with bearings 33 slidable on guides 34 supported by a bracket 35 secured to standard 1. Secured at one end of guides 34 is a compressed air cylinder 36 in which a piston 38 secured to. carriage 32operates.

vCompressed air is admitted and exhausted from cylinder 36 through pipe 40 controlled by valves 41 adapted to alternatively conncct pipe'40 to a. source of compressed air thru pipe 42, or vent itto the atmosphere.

The valve is controlled'by foot-throttle .44.

These air connections may be of any conventional type and detailed description ofthem is believed unnecessary. As will be evident from an inspection of Figure 2 the fcompressed air entering cylinder 36 will ;move carriage'32 to the left. Upon exhaustion of the air in cylinder 36, carriage 32 is moved adjustablysecured at 5'Zto a member 58 ad- I justably secured in turn at 59 to bracket 35, 'is a groovedroll 6O hereinafter referredto as the folding roll. Roll 60 is positioned to fit nicely between the outer flanges of roll 30 when the latter is in its outward position as shown in Figure' 4. A spring 61 urges arm 56 downwardly against an adjustable stop 63. A shaft 66adapted to support a roll of fabric is rotatably mounted on bracket 68 secured to table 2. Shaft 66 is positioned as shown in Figures 1 and 2 in substantial alignment with drums 28 and 30.

- Brackets 26 and 35 are preferably extended to formholders 37 and for grommets and finished cores respectively.-

The operation is as follows: I

WVith drum. 30 in the position shown in Figure 3 grommets 70 are positioned in grooves 29 and 31 as shown in Figure 3. Air then admitted to cylinder 36, to move drum 30 to the position shown in Figure 4 thus putting the grommets under tension. Power is now applied through pedal 14 to drive dr in 28 thus driving the grommets Drum 30 is freely I forward and rotating drum 30. Due to the eccentric mounting of drum 28 an increased tension is intermittently applied to the grommets thus removing any kinks in the grommet wires and seating them properly in the grooves of the drums. The clutch is then released. As shown in Figure 1 the grommets as they pass over roll 50 are positioned on either side of flange 54. A strip of fabric 71 preferably heavily coated with rubber is drawn from a supply roll supported on shaft 66 and fed beneath the grommets as they rest on roll 50 as shown in Figure 5. As shown in the latter figure, flange serves to fold the fabric strip upwardly between the grommets. Strip 71 is further fed forwardly until engaged between the grommets and drum as shown in Figure 6. During these operations drum 28, and thereby the grommets 70, are preferably rotated through hand wheels 18 or 19. Pedal 14 is now depressed to again apply power to shaft 4 to rotate drum 28, grommets 70 and drum 3O strip 71 is thus drawn forward beneath and between the groimnets and around drum 30 as shown in Figure 6. Folding roll 60 as previously stated engages between the flanges of drum 30 and as the strip 71 passes beneath the folding roll the edges of the fabric strip are thereby folded down into contact with the upwardly folded intermediate portion of the strip, as clearly shown in Figure 6. This operation is continued until the grommets are completely wrapped, the fabric strips being severed and the end overlapped to complete the wrapping.

It is obvious that the wrapping could be continued to apply a plurality of layers of fabric to the grommet but I prefer to use a single wrapping with a fabric sufficiently heavy to supply all the necessary filler.

Air is now exhausted from the cylinder 36, carriage 32 moving to the right under the influence of weight 4:6, permitting removal of the completely formed bead core. The bead is now ready to be placed as a unit in a vulcanizing press to be semi-cured,

the so cured bead core being shown in Figure 8. 7

It will be obvious that by forming a suitable number of grooves in drums 28 and 30 and providing additional flanges on roll 10, and 11 corresponding to Figures 5, 6,

and 7 show the formation of a three-cabled bead core.

It will be understood that the specific em-.

bodiment of my invention above described is illustrative only and my invention is not limited thereto,

I claim:

1. A device of the character described comprising a roll provided with spaced grooves adapted to receive grommets, the center ridge defining said grooves adapted to raise the central portion of a strip of wrapping material between the grommets and a second grooved roll the flanges of which are adapted to engage the interior faces of the outer flanges of the first mentioned roll in position to engage and fold the edges of a strip of material about the grommets positioned in the grooves.

2. A device of the character described comprising aligned grooved rolls provided with spaced grooves adapted to receive endless grommets and a strip of material, means for reciprocating one of said rolls, a flanged roll adapted to force the central portion of the strip of material between the grommets, a. folding roll adapted to fold the edges of the material about the adjacent grommets and means to rotate one of said first mentioned rolls. 1

3. A device of the character describe-id comprising aligned rolls provided with spaced grooves adapted to receive endless grommets, means for reciprocating one of said rolls to permit positioning of the grommets and apply tension thereto, means to rotate one of said rolls, a flanged roll so positioned that its flange projects between the grommets, and adapted to force the center portion of a. wrapper strip between the grommets, and a grooved folding roll the flanges of which engage the interior faces of the outer flanges of one of the first mentioned rolls to fold the edges of the wrapper strip about the grommets and into over lapping relation. y

In testimony whereof I have signed my name to the above specification.

DANIEL E. HENNEssY. 

